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==Jacques Lacan==
=====Ferdinand Saussure=====
The term "[[bar]]" first appears in [[Lacan]]'s work in 1957, where it is introduced in the context of a discussion of [[Saussure]]'s concept of the [[sign]].<ref>{{E}} p.149</ref>
=====Barred Subject=====
Not long after the 1957 paper in which the term first appears, in the [[seminar]] of 1957-8, [[Lacan]] goes on to use the [[bar]] to strike through his [[algebraic]] [[symbol]]s '''S''' and '''A''' in a manner reminiscent of [[Heidegger]]'s practice of crossing out the word "[[being]]."<ref>[[Heidegger|Heidegger, Martin]]. (1956) ''The Question of Being'', trans. William Kluback and Jean T. WIlde, London: Vision, 1959.</ref>
The [[bar]] is used to strike through the '''S''' to produce, '''$'''[[Image:StrikeS.gif]], the "[[bar|barred subject']]."
The [[bar]] here represents the [[division]] of the subject]] by [[language]], the [[split]].
Thus whereas before 1957 '''S''' designates the [[subject]] (e.g. in [[schema L]]), from 1957 on '''S''' designates the [[signifier]] and '''$''' [[Image:StrikeS.gif]] designates the ([[divided]]) [[subject]].
=====Barred Other=====
The [[bar]] is also used to strike through the '''A''' (the [[big Other]]) to produce the algebraic notation for the "[[bar|barred Other]]," '''A'''.
However, [[Lacan]] continues to use both [[sign]]s in his [[algebra]] (e.g. in the [[graph of desire]]).
[[Category:Concepts]]
[[Category:Psychoanalysis]]
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